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Effects of Pandora Moth Outbreaks on Ponderosa Pine Wood Volume

dc.contributor.authorSpeer, James H.
dc.contributor.authorHolmes, Richard L.
dc.date.accessioned2012-12-13T23:35:43Z
dc.date.available2012-12-13T23:35:43Z
dc.date.issued2004
dc.identifier.citationSpeer, J.H., Holmes, R.L. 2004. Effects of pandora moth outbreaks on ponderosa pine wood volume. Tree-Ring Research 60(2):69-76.en_US
dc.identifier.issn2162-4585
dc.identifier.issn1536-1098
dc.identifier.urihttp://hdl.handle.net/10150/262634
dc.description.abstractColoradia pandora (Blake) is a phytophagous insect that defoliates Pinus ponderosa (Dougl. ex Laws.) in south-central Oregon. Little is known about the extent of damage this insect inflicts upon its host trees during an outbreak. In this paper, we present stem analyses on four dominant Pinus ponderosa trees that enable us to determine the amount of volume lost during each Coloradia pandora outbreak on this site for the past 450 years. We found that on average an outbreak inhibits radial growth so that an individual tree produces 0.057 m³ less wood volume than the potential growth for the duration of an individual outbreak. A total of 0.549 m³ of growth per tree was inhibited by 10 outbreaks during the lifetime of the trees, which, in this stand, equates to 9.912 m³/ha (1,700 board feet/acre) of wood suppressed over the last 450 years throughout the stand. Our results do not support previous findings of a lag in suppression onset between the canopy of the tree versus the base. Crossdating of stem analysis samples is paramount to definitively examine the potential for a lagged response throughout the
dc.language.isoen_USen_US
dc.publisherTree-Ring Societyen_US
dc.relation.urlhttp://www.treeringsociety.orgen_US
dc.rightsCopyright © Tree-Ring Society. All rights reserved.en_US
dc.subjectDendrochronologyen_US
dc.subjectTree Ringsen_US
dc.subjectDendroecologyen_US
dc.subjectPonderosa Pineen_US
dc.subjectPandora Mothen_US
dc.subjectInsect Outbreaksen_US
dc.subjectStem Analysisen_US
dc.titleEffects of Pandora Moth Outbreaks on Ponderosa Pine Wood Volumeen_US
dc.typeArticleen_US
dc.contributor.departmentDepartment of Geography, Geology and Anthropology, Indiana State University, Terre Haute, IN 47809en_US
dc.contributor.departmentLaboratory of Tree-Ring Research, The University of Arizona, Tucson, AZ 85721en_US
dc.identifier.journalTree-Ring Researchen_US
dc.description.collectioninformationThis item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. It was digitized from a physical copy provided by the Laboratory of Tree-Ring Research at The University of Arizona. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at editor@treeringsociety.org.en_US
refterms.dateFOA2018-05-28T12:32:25Z
html.description.abstractColoradia pandora (Blake) is a phytophagous insect that defoliates Pinus ponderosa (Dougl. ex Laws.) in south-central Oregon. Little is known about the extent of damage this insect inflicts upon its host trees during an outbreak. In this paper, we present stem analyses on four dominant Pinus ponderosa trees that enable us to determine the amount of volume lost during each Coloradia pandora outbreak on this site for the past 450 years. We found that on average an outbreak inhibits radial growth so that an individual tree produces 0.057 m³ less wood volume than the potential growth for the duration of an individual outbreak. A total of 0.549 m³ of growth per tree was inhibited by 10 outbreaks during the lifetime of the trees, which, in this stand, equates to 9.912 m³/ha (1,700 board feet/acre) of wood suppressed over the last 450 years throughout the stand. Our results do not support previous findings of a lag in suppression onset between the canopy of the tree versus the base. Crossdating of stem analysis samples is paramount to definitively examine the potential for a lagged response throughout the


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